Dust-proof single-delivery cover-glass magazine



A. H. COLE.

DUST PROOF SINGLE DELIVERY GOVER GLASS MAGAZINE.

(No Model.)

Patented Dec. 18, 1894.

61m Mg INVENTOR WITNESSES.

v ATTORNEY.

E uoams PETERS co. vua'rou'mo wumnerou o c UNITED STATES PATENT OFFICE.-

7 AARON H. COLE, HAMILTON, NEW YORK.

DUST-PROOF SING LE -DELIVERY COVER-G LAS S MAGAZIN E.

SPECIFICATION forming part of Letters Patent No. 530,926, dated December 18, 1894.

I Application filed June 16, 1892. Serial No. 436,964. (No model.)

To all whom it may concern:

Be it known that I, AARON H. COLE, a citizen of the United States, residing at Hamilton, in the county of Madison and State of New York, have invented certain new and useful Improvements in Dust-Proof Single- Delivery Cover-Glass Magazines; and I do hereby declare the following to be at ull, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. The object of my invention is to provide a convenient and easily operated dust-proof magazine for holding, and delivering when needed, glass covers or glassslipsfor micro: scopic and other scientific use, at once storing the glasses in a convenient manner and protected against dust or other atmospheric partioles, and also to provide means whereby a single cover or slip may be delivered at any time, and in the delivery, freed from any dust or other particles which may have adhered to its surface, and without exposing the 'remaining covers or slips to dust during the process of delivery, and also to provide a magazine suited to and adjustable to covers and slips of difierent thicknesses and forms.

Referring to the drawings:-Figure I is a perspective view of my device. Fig. II is a vertical sectional view of my device, upon the line w-w, Fig. I. Fig. III is a plan view of the base, the column or receptacle in which the disks or plates are restored, being removed. Fig. IV is a top plan view of my warning disk, hereinafter described.

Like letters refer'to like parts throughout the drawings.

In the drawings, B, Fig. I, is the base, which may be constructed of any desired form' or material, upon which and into which my mechanism is fitted, and which, in turn, rests upon the table or stand or other convenient place for the operator. Upon this base I'erect the column, A, Fig. I, which is cylindrically hollow, and of proper diameter for holding the covers loosely when stacked, the cylindrical cavity being shown at C, Fig. II, andfitting over the cylindrical opening and pro-'- vided with any approved dust-proof joint, as indicated at h, h, Fig. II, and removably attached thereto, I construct the cover or crown,

H, Fig. I. Upon one of the sides of the colnmn, A, Fig. I, and at the base of the cylindrical opening, I provide an opening a, of dimensions. sufficiently large to permit of the free passage of a cover of the ordinary diameter and of any usedthickness, from its horizontal position at the base of the cylindrical opening, in the manner hereinafter described.

The base B opposite the opening a is extended toforrn a shelf or ledge upon which the disks or cover-glasses are moved when brought out from the receptacle A, and upon which they rest until it is desired to use them. Upon theupper surface of this shelf portion of the base, B, Fig. I, I construct the notch or groove, 01, for the purpose of allowing one prong of the forceps, commonly usedin handling covers, to be inserted beneath the cover .When presented, for the purpose of finally removing and using the same. I also provide the opening, a, with aflap or drop shutter, c, constructed of any desirable fiexi-- ble material, which closes the aperture or opening a when not in use, permits of the freepassage of the cover and, at the same time, acts to wipe away any dust particle which may have lodged upon the face of the cover; and I also findit advisable to cover that portion of the base, B, which is included within the line n, Fig. III, and upon which the covers rest and slide, as hereinafter described, with some similar material 0' to that used for the flap or drop-shutter in order to also wipe the under surface of the cover in the process of removal, simultaneously with the upper surface, and also for the purpose of preventing scratching or marring the surface in sliding over said base, as herein described. I may also, either in addition to or as a substitute for the said covering of that portion of the base, B, included within said line a, provide at a convenient distance on either side of the notch or groove, d, a narrow raised ledge, each parallel with the line of movemounted within a suitable cavity in the base B and supported upon a shaft f, one end of which extends outward through the side of the base where it is provided with a milled head or wheelj by means of which the shaft and drum maybe turned. The drum or wheel is covered with rubber, leather or other suitable material, calculated to produce friction, and the shaft is so mounted in bearingso that the edge of the drum comes just above the upper surface of the base so that the disks or glasses arranged in the receptacle A rest thereon. I employ means whereby I am enabled to regulate the vertical dimension of the aperture a, thus adapting it to covers of any desired thickness, and at the same time preventing the delivery of more than a single cover or disk at one time. Such means, as shown in the drawings, consists of a screw e provided with a milled head or other means whereby it may be turned, and arranged so that its end may be projected into the opening a. Instead of using the screw e, a frictionally held slide may be employed.

In operation, the cylindrical opening is filled, or partially filled, by removing the cap or crown, H, with stacked covers, as shown at g, Fig. II; and nearly at the top of the stack is inserted the markedcover or warning disk, 1', as shown in Fig. IV. The lowest or bottom cover rests down upon the upper surgace of the base,.B, and also upon the periphery of the drum or wheel K, so that said cover is slightly raised at the edge presented to said opening, a, all of which is clearly indicated in Fig. II. The hand-wheel j is then rotated in the direction which will revolve the drum K so as to carry the covers forward by friction towardthe opening a. The screw e is regulated so as to intercept the movement of the cover next above the one to which the friction is being applied and stops the progress together with that of all the covers above it toward said opening a. The rotation is continued, and by reason of the friction of the drum, K, being greater upon the under surface of the lowest cover than that of its friction in contact with the cover next above it, it is moved outwardly through said opening, a, until it rests upon the shelf of the base opposite to the opening a and over the groove cl, as shown in Fig. III. The cover has now passed over the periphery of the drum, K, to a point where the friction ceases to carry it forward; and still it has not yet been so far removed as to allow the next succeeding cover to come into contact with said drum or out of contact with the stop, e, so that it may be carried forward until the first cover has been finally removed by the insertion of the forceps at the point d, and its removal by the hand of the operator. manner I am able to prevent the delivery and exposure of more than a single cover at any given rotation of the hand -wheel j. When the cover has been further removed In this in the manner indicated, the next succeeding cover falls by gravity into the place occupied by the first cover; and so the operation may be repeated. As the column is opaque, and the operator may be unmindful ot' the fact that his supply of covers is becoming exhausted, it is of advantage to have a warning cover of the character indicated at Fig. IV, which I preferably insert with the other covers at a point eighth or tenth from the top of the stack; and upon the appearance of this cover, the operator is informed of the limit of his supply.

In my description I haveindicated a device applicable to holding covers substantially circular in shape. It is apparent that by more mechanical skill or adaptation a device may be constructed to hold covers or slips of any desired shape, without departing from the spirit of my invention; and in this respect I do not, therefore, limit my invention to the specific device herein shown and described.

What I do claim is- 1. The combination of the column or holder A provided with a delivery opening near its lower end, a base upon which the column is supported, having a shelf opposite the opening, a flexible flap adapted to close the said opening, and past which the covers are moved, and by which the covers are wiped as they pass through the opening, and means for forcing the covers through the said opening, substantially as set forth.

2. The combination of the holder A provided with an opening near its lower end, the base upon which the column is supported, provided with a ledge opposite the said opening, the flexible flap 0 adapted to close the said opening, the material 0' secured to the said shelf of the base, and which flap and material serve to wipe the opposite sides of the covers as they are delivered through the opening, and means for forcing the covers, one at a time, through the said opening, substantially as set forth.

3. The combination of the column A wherein the plates or disks are held one above the other, provided with an opening a, the base upon which the column is supported, the drum or wheel K upon the periphery of which the plates or disks rest, adjustable means arranged to confine all of the plates or disks within the column until the lowermost one is removed therefrom and a flexible flap adapted to close the said opening, and past which the disks are moved and by which the disks are wiped as they pass through the opening, substantially as set forth.

In testimony that I claim the invention above set forth I affix my signature in presence of two witnesses.

AARON H. COLE.

Witnesses:

JOHN J. TAYLOR, CHAS. J. GRIsWoLD. 

